WO2009074032A1 - Dispositif de poussée électrique - Google Patents

Dispositif de poussée électrique Download PDF

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Publication number
WO2009074032A1
WO2009074032A1 PCT/CN2008/072709 CN2008072709W WO2009074032A1 WO 2009074032 A1 WO2009074032 A1 WO 2009074032A1 CN 2008072709 W CN2008072709 W CN 2008072709W WO 2009074032 A1 WO2009074032 A1 WO 2009074032A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
servo motor
screw rod
base
nut
Prior art date
Application number
PCT/CN2008/072709
Other languages
English (en)
Chinese (zh)
Inventor
Chih-Shiang Han
Original Assignee
Lu, Hsaio-Ting
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lu, Hsaio-Ting filed Critical Lu, Hsaio-Ting
Publication of WO2009074032A1 publication Critical patent/WO2009074032A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • B29C45/661—Mould opening, closing or clamping devices mechanical using a toggle mechanism for mould clamping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2075—Coaxial drive motors
    • F16H2025/2078—Coaxial drive motors the rotor being integrated with the nut or screw body

Definitions

  • the present invention relates to an electric pushing device used in a construction machine, such as an injection molding machine and a pushing device used in a jack.
  • the pushing device of the existing injection molding machine is mostly a hydraulic clamping mechanism, and the hydraulic cylinder is used to push the mechanical mechanism to complete the opening and closing of the mold.
  • FIG. 1 There is also an electric pushing device applied to the injection molding machine as shown in Fig. 1.
  • the outer plate is hinged with the connecting rod of the clamping mechanism, and a nut is arranged on the rear plate.
  • the screw rod is matched with the nut, and the front end of the screw is connected with the clamping mechanism.
  • the rear end of the screw is driven by the motor through the pulley mechanism.
  • the rotation of the screw rod due to the pushing of the nut, the forward or backward movement is generated, and the mechanical mechanism of the clamping mechanism is driven.
  • FIG. 2 Another structural form of the electric pushing device is shown in FIG. 2: the rear plate is hinged with the connecting rod of the clamping mechanism, and a nut is mounted on the clamping mechanism, and the screw provided on the rear plate is matched with the nut.
  • the lead screw is driven by the motor through the pulley drive mechanism.
  • Silk When the rod rotates, the nut advances and retreats on the screw rod, and drives the mold clamping mechanism to open or close the mold.
  • the disadvantage is that the screw is fixed and affects the mold opening. In order to clamp the mold, the screw rod needs to be kept at a considerable length, and when the mold is opened, the mechanical mechanism is retracted, and it is easy to resist the front end of the screw rod, and the mold opening stroke is restricted, and it is impossible to make a large product.
  • the disadvantages of complicated transmission mechanism, high energy consumption, poor accuracy of pushing, and short life are also present.
  • the invention solves the defects of the complicated mechanism, low energy efficiency and poor precision of the prior electric clamping device, and provides an electric pushing device with compact structure, favorable precision control and high energy efficiency.
  • the electric thrusting device of the present invention comprises a base, the screw rod is disposed on the base, and further comprises a screw rod and a nut which are engaged with each other, and the front end of the screw rod is a pushing end, wherein: the base is connected to the outer joint
  • the rotor permanent magnet servo motor is fixed to the rotor of the outer rotor permanent magnet servo motor.
  • the rotor of the outer rotor permanent magnet servo motor is disposed on the base through a tapered roller bearing, and the rotor of the outer rotor permanent magnet servo motor is coaxially arranged with the nut and the screw rod, and the outer rotor permanent magnet
  • the stator of the servo motor is connected to the housing, and the housing is connected to the base.
  • the invention has the advantages of compact structure and simple structure, and the nut is directly connected with the motor, thereby avoiding the energy loss caused by the transmission stage, improving the energy efficiency ratio, and also facilitating the precise control of the jacking process.
  • the advantages of the invention are: compact structure, simple, high energy efficiency ratio, and clamping stroke control precision Indeed.
  • FIG. 1 is a structural view of a conventional electric thrust device.
  • FIG. 2 is a structural view of another conventional electric thrusting device.
  • Figure 3 is a schematic view showing the structure of the present invention applied to an injection molding machine.
  • Figure 4 is a schematic view showing the structure of the present invention applied to a jack.
  • the electric pushing device of the present invention comprises a base, the screw rod is disposed on the base, and further comprises a screw rod and a nut which are engaged with each other, the front end of the screw rod is a pushing end, and the outer rod is connected with an outer rotor permanent magnet type
  • the servo motor is fixed to the rotor of the outer rotor permanent magnet servo motor.
  • the rotor of the outer rotor permanent magnet servo motor is disposed on the base through a tapered roller bearing, and the rotor of the outer rotor permanent magnet servo motor is coaxially arranged with the nut and the screw rod, and the outer rotor permanent magnet servo
  • the stator of the motor is coupled to the housing, and the housing is coupled to the base.
  • the present invention is applied to an electric clamping device, and the rear die plate 10 is a base.
  • the electric clamping device includes a clamping mechanism, and the clamping mechanism includes a rear die plate 10, a moving die plate 15 for mounting the movable die 17, and a front die plate 16 for mounting the fixed die 18.
  • the moving template 15 and the front template 16 can be relatively closed and separated.
  • a lead screw 8 is disposed on the rear die plate 10, and a front portion of the screw bar 8 is coupled to the crossover wall 14 of the mold clamping mechanism.
  • the rear die plate 10 is provided with an outer rotor permanent magnet servo motor, and the rotor 3 of the outer rotor permanent magnet servo motor is connected to a nut 9 mated with the screw rod 8.
  • the lead screw 8 is a ball screw and the nut 9 is a ball nut.
  • the rotor 3 of the outer rotor permanent magnet servo motor is disposed on the rear die plate 10 through the tapered roller bearing 2, and the rotor 3 of the outer rotor permanent magnet servo motor is coaxially arranged with the nut 9 and the screw rod 8.
  • the stator 6 of the outer rotor permanent magnet servo motor is connected to the outer casing 7, and the outer casing 7 is connected to the rear die plate 10.
  • a magnet 4 is mounted on the rotor 3, and a coil 5 is wound around the stator 6 made of a silicon steel sheet.
  • the bearing housing 1 for mounting the tapered roller bearing 2 is fixed to the rear die plate 10.
  • the rear template 10, the moving template 15 and the front template 16 are all placed on the horizontal tie rods.
  • the clamping mechanism is a toggle linkage mechanism, and the rear template 10 hinges the rear end of the pair of elbows 11 symmetrically up and down.
  • the front end of the elbow hand 11 simultaneously with the cranklet 12 and the curved hand Dalian
  • the rear end of the rod 13 is hinged, and the other ends of the two curved small connecting rods 12 are symmetrically hinged at both ends of the crossover wall 14, and the front ends of the two curved large connecting rods 13 are symmetrically hinged at the upper and lower ends of the movable die plate 15.
  • the rotor 3 and the ball screw nut 9 are fixed together.
  • the clamping motor is positively energized, the rotor rotates clockwise from the motor shaft end. Since the screw nut 9 only rotates, the screw 8 is translated. At this time, the screw 8 will protrude from the shaft end.
  • the lead screw 8 is translated with the crossover wall 14, and the crossover wall 14 drives the movable template 15 along the drawbar through the toggle link mechanism. 19 acts as a translation to produce the clamping of the molds 17, 18; when the clamping motor is negatively charged, the rotor rotates counterclockwise (as viewed from the shaft end of the motor).
  • the lead screw 8 will be retracted from the shaft end of the motor, and the lead screw drives the cross-car wall 14 to make a translation. At this time, the cross-car wall drives the die plate 15 to move along the tie rod 19 through the toggle link mechanism to open the mold 17, 18 Actions.
  • the screw driving mechanism of the invention is compact and simple, and the nut is directly connected with the outer rotor permanent magnet servo motor, thereby avoiding the energy loss caused by the transmission stage, improving the energy efficiency ratio, and also facilitating the precise control of the screw process.
  • This embodiment is an example in which the present invention is applied to a jack.
  • the electric pushing device of the present invention comprises a base, the screw rod is disposed on the base, and further comprises a screw rod and a nut which are engaged with each other, the front end of the screw rod is a pushing end, and the outer rod is connected with an outer rotor permanent magnet type
  • the servo motor is fixed to the rotor of the outer rotor permanent magnet servo motor.
  • the rotor of the outer rotor permanent magnet servo motor is disposed on the base through a tapered roller bearing, and the rotor of the outer rotor permanent magnet servo motor is coaxially arranged with the nut and the screw rod, and the outer rotor permanent magnet servo
  • the stator of the motor is coupled to the housing, and the housing is coupled to the base.
  • the invention is applied to a jack, the jack base 20 and the jack upper cover 21 are bases, and the outer rotor permanent magnet servo motor housing is mounted on the jack base 20, and the bearing housing 1 and the tapered roller bearing 2 are mounted on the jack. Cover 21 on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention concerne un dispositif de poussée électrique comportant une base, une tige de vis (8) et un écrou (9) qui s'engage avec la tige de vis. La tige de vis (8) s'étend à travers la base et l'extrémité avant de la tige de vis (8) est une extrémité de poussée. Un servomoteur de type à aimant permanent à rotor extérieur est connecté à la base, et l'écrou (9) est fixé à un rotor (3) du moteur.
PCT/CN2008/072709 2007-12-07 2008-10-16 Dispositif de poussée électrique WO2009074032A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710164573.8 2007-12-07
CNA2007101645738A CN101453145A (zh) 2007-12-07 2007-12-07 电动顶推装置

Publications (1)

Publication Number Publication Date
WO2009074032A1 true WO2009074032A1 (fr) 2009-06-18

Family

ID=40735216

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/072709 WO2009074032A1 (fr) 2007-12-07 2008-10-16 Dispositif de poussée électrique

Country Status (2)

Country Link
CN (1) CN101453145A (fr)
WO (1) WO2009074032A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011088925A3 (fr) * 2010-01-23 2012-02-23 Schaeffler Technologies Gmbh & Co. Kg Éolienne à une ou plusieurs pales
DE202014103629U1 (de) 2014-08-05 2014-09-18 Perma Gear Gmbh Magnetische Antriebselemente Schieber
EP2891824A2 (fr) 2013-10-29 2015-07-08 Perma gear GmbH Magnetische Antriebselemente Tiroir

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103780007A (zh) * 2012-10-18 2014-05-07 大银微系统股份有限公司 螺杆往复运动的外转式直驱机构
CN103280921B (zh) * 2013-04-27 2016-02-10 浦江县合芯电子科技有限公司 驱动电机及磨珠机磨盘升降机构
CN106329881A (zh) * 2015-06-15 2017-01-11 李启飞 滑动丝杠电动调速筒式磁力耦合器
CN206313598U (zh) * 2017-01-12 2017-07-07 杭州宇树科技有限公司 一种精简结构的高功率质量密度的直线驱动装置
CN108233619A (zh) * 2018-01-31 2018-06-29 湖北环电磁装备工程技术有限公司 一种无框组合式永磁同步直线电机直驱的千斤顶装置
CN108233618A (zh) * 2018-01-31 2018-06-29 湖北环电磁装备工程技术有限公司 一种无框式永磁同步电机直驱的千斤顶装置
CN113503292B (zh) * 2021-08-23 2022-08-12 中国电子科技集团公司第三十八研究所 一种电动插销

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1193903A (ja) * 1997-09-18 1999-04-06 Ribekkusu:Kk 位置決め制御用バルブ内臓型液圧シリンダ
JPH11122865A (ja) * 1997-10-17 1999-04-30 Thk Co Ltd モータ付ボールねじ装置
WO2007088691A1 (fr) * 2006-01-31 2007-08-09 Thk Co., Ltd. Dispositif d'entraînement de moteur électrique creux
CN200977715Y (zh) * 2006-10-08 2007-11-21 顺德职业技术学院 直驱式注塑机顶出装置
CN201122873Y (zh) * 2007-12-07 2008-09-24 联塑(杭州)机械有限公司 电动顶推装置
CN201136276Y (zh) * 2007-12-07 2008-10-22 联塑(杭州)机械有限公司 电动锁模装置
CN101306574A (zh) * 2008-06-25 2008-11-19 联塑(杭州)机械有限公司 一种电动顶推装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1193903A (ja) * 1997-09-18 1999-04-06 Ribekkusu:Kk 位置決め制御用バルブ内臓型液圧シリンダ
JPH11122865A (ja) * 1997-10-17 1999-04-30 Thk Co Ltd モータ付ボールねじ装置
WO2007088691A1 (fr) * 2006-01-31 2007-08-09 Thk Co., Ltd. Dispositif d'entraînement de moteur électrique creux
CN200977715Y (zh) * 2006-10-08 2007-11-21 顺德职业技术学院 直驱式注塑机顶出装置
CN201122873Y (zh) * 2007-12-07 2008-09-24 联塑(杭州)机械有限公司 电动顶推装置
CN201136276Y (zh) * 2007-12-07 2008-10-22 联塑(杭州)机械有限公司 电动锁模装置
CN101306574A (zh) * 2008-06-25 2008-11-19 联塑(杭州)机械有限公司 一种电动顶推装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011088925A3 (fr) * 2010-01-23 2012-02-23 Schaeffler Technologies Gmbh & Co. Kg Éolienne à une ou plusieurs pales
EP2891824A2 (fr) 2013-10-29 2015-07-08 Perma gear GmbH Magnetische Antriebselemente Tiroir
EP2891824B1 (fr) * 2013-10-29 2021-10-20 Venture-Invest Bohemia s.r.o. Tiroir
DE202014103629U1 (de) 2014-08-05 2014-09-18 Perma Gear Gmbh Magnetische Antriebselemente Schieber

Also Published As

Publication number Publication date
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